Finding the Fourth Proportional to 142,767.90, 197,115.93 and 127,611.99
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Solution
The fourth proportional to 142,767.90, 197,115.93 and 127,611.99 is: 176,190.56
Step by Step Solution
- Step 1: Write the proportion equation
142,767.90 : 197,115.93 = 127,611.99 : x - Step 2: Convert to fraction form
142,767.90/197,115.93 = 127,611.99/x - Step 3: Cross multiply
142,767.90x = 197,115.93 × 127,611.99 - Step 4: Simplify right side
142,767.90x = 25,154,356,088.00 - Step 5: Solve for x
x = 25,154,356,088.00/142,767.90 - Step 6: Final answer
x = 176,190.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.